Overview
The Dana Spicer 2020930 is a 4.56 ratio Value Line ring and pinion for the Dana 50 front axle. It is an aftermarket gear set with all-makes coverage for automotive and commercial use.
A 4.56 ratio gives more torque multiplication at the wheels than a 4.30 set, and less than a 5.38 set. The gears need to be matched to the housing, so confirm the housing before ordering.
Key features
- 4.56 ratio front ring and pinion
- Dana 50 front axle type
- Dana Spicer Value Line aftermarket range
- All-makes coverage described by Dana Spicer
- Popular Dana axle manufacturer
Gear ratio and driving feel
The ring and pinion sets the final drive ratio at the front axle, which changes how the vehicle pulls away and how the engine turns at a given speed. A lower numerical ratio favors highway cruising, while a higher one helps with low-speed torque and heavier tires. Choosing a ratio means thinking about tire size, load and how the vehicle is used most of the time.
Gear sets are usually installed as a unit, with the pinion depth and backlash set by a driveline shop. Carrier bearings and the pinion bearing should be inspected for wear whenever the gears come out, since worn bearings can bring back noise. Keep the axle fluid at the correct level and change it on the schedule your vehicle needs.
- Check tire size against the new ratio
- Inspect the carrier bearings and seals
- Confirm the housing type before buying
Specifications
| Brand | Dana Spicer |
|---|---|
| Part number | 2020930 |
| Gear ratio | 4.56 |
| Axle location | Front |
| Axle type | Dana 50 |
| Popular axle manufacturer | Dana |
| Range | Value Line |
Vehicle fitment
Match the axle type and gear ratio to your housing before ordering.
The Dana 50 is a separate axle from the Dana 60 and the Dana 30 layouts, so confirm the axle name on the housing. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Pinion depth, backlash and bearing preload for this Dana 50 gear set should be set by a driveline shop, followed by a break-in period on the 4.56 ratio.
What’s included
A 4.56 ring and pinion set for the Dana 50. Check the carrier and other hardware against your housing before installation.
